/Engine/Plugins/Experimental/MeshModelingToolsetExp/Source/MeshModelingToolsExp/Public/MeshVertexSculptTool.h
double SampleBrushAlpha ( const [FSculptBrushStamp](API\Plugins\MeshModelingToolsExp\Sculpting\FSculptBrushStamp) & Stamp, const FVector3d & Position ) const